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abbydamaso1097
24.07.2021 •
Mathematics
Which ordered pair is a solution to the system of inequalities?
y > –x
y ≤ x + 1
A) (0,5)
B) (4,–1)
C) (1,3)
D) (–4,0)
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Ответ:
9514 1404 393
B) (4,–1)
Step-by-step explanation:
A graph can help you figure this out. The point (4, -1) is in the doubly-shaded area, so is a solution to this system.
Ответ:
==========================================================
Explanation:
Choice A can be ruled out because
which is false.
Choices C and D are similar, so they can be ruled out as well.
---------------------
Choice B is the answer because it makes both inequalities true.
If we plug the coordinates of (4,-1) into the first inequality, we get
which is a true statement because -1 is to the right of -4 on the number line.
Now try the other inequality
that's true also. So again, (4,-1) makes both inequalities true, and that's why choice B is the answer.
Ответ: